Influence of the yihE gene of Shigella flexneri on global gene expression: on analysis using DNA arrays.

Abstract excerpt

Inactivation of dsbA (disulfide bond formation), either by an insertion (Sh4, dsbA::kan) or by alteration of the active site (Sh42, dsbA33G), renders Shigella flexneri avirulent. However, Sh4 and Sh42 behave differently in many ways in vitro and in vivo. A gene of unknown function, yihE, up-stream and cotranscribed with dsbA, is thought to differentiate Sh4 and Sh42 as the kan insertion may result in a truncated...

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